Fire extinguisher



Nov. 8, 1927. 1,648,233

' C. O. JOHNSTON FIRE sxwmeursgsa Original Filed Juli a, 1 25 INVENTOR(War/es 0. lb/ms ton Patented Nov. 8, 1927.

UNITED STATES PATENT OFFICE.

CHARLES O. .JbHNSTON, OF NEW YORK, N. Y., ASSIGNOR, BY MESNEASSIGNMENTS, 'IO STANDARD FIRE EQUIP MENT CORPORATION, OF NEW YORK, N.Y., A CORPORATION OF DELAWABE.

FIRE EXTINGUISHER.

Original application filed July 9, 1926, Serial No. 121,334. Divided andthis application filed Januarvfi, 1827. Serial No. 161,038.

This invention relates to fire extinguishers. More particularly stated,the invention relates to the grenade type of fire extinguisher and to aholder or support for the grenade.

This invention has for its salient object to provide a support for agrenade so con- Structed that the grenade can be easily and readilyremoved therefrom and, furthermore, so constructed and arranged that incase of fire the grenade .will automatically drop, ilireiiik, anddispense the fire extinguishing Another object of the invention is toprovide a support or holder for a grenade so constructed and arrangedthat the grenade will be releasably held against accidental displacementor removal from the su port.

Another object of the invention 12: to provide a bracket or holder forgrenades comprising few parts and a structure that can be economicallymanufactured.

Further objects of the invention will appear from the followingspecification taken in connnection with the drawings, which form a partof this application, and in which Fig. 1 is an elevational Viewillustrating one form of support and a grenade mounted thereon;

Fig. 2 is an elevational view taken at right angles to Fig. 1; and

Fig. 3 is a sectional elevation taken subtantially on line 3-3 of Fig.2.

The invention briefly described consists of a holder or support for agrenade preferably comprising two parts, one of the parts being adaptedto be secured to a supporting structure and the other part forming thesupport for the grenade. The two parts are connected together by fusiblemetal in such a manner that in case of fire the fusible metal will meltand the grenade support will drop, releasing the grenade.

This application is a division of my copending application, Serial No.121,334, filed July 9, 1926, and issued as Patent No. 1.633254, June-21, 1927.

In the form of the invention shown, the grenade holder comprises a bailhaving an eve 11 connected thereto by a sleeve 12 formed of fusiblemetal and the bail also has, secured to the lower end thereof a ring 13which, as shown in Figs. 1 and 2, encircles the grenade 15 and forms aprotection therefor. The ring 13 does not have any supporting function.

The grenade 15 is supported in a ring 18 carried by links 19 and 20. Thelink 19, as shown at 21, is bent around the rin 13 and pivoted thereon.The link 20, as s own at 25 in Fig. 3, is bent laterally into the planeof the ring 13 and the laterally bent end 25 is secured to the ring 13by a sleeve 26 formed of fusible metal.

The form of the invention shown is particularly adapted for suspensionfrom a ceiling and is suspended by the eye 11. In case of tire, when thetemperature of the room in which the grenade is suspended rises to apredetermined extent, one or both of the sleeves 12 and 26 will melt,whereupon the grenade will be released and fall. The grenade 15 isformed of fran ible material, such as glass, and contains a reextinguishing fluid such as carbon tetrachloride. When the grenade fallsit will break and release the tetrachloride which will form a blanketand smother the fire. If the sleeve 26 melts before the sleeve 12, thering 18 will drop and the link 19 will swing about its pivot 21, thusreleasing the grenade. It will'be evident that it is not necessary forthe sleeve 26 to entirely melt as the weight of the grenade will pullthe extension 25 away from the sleeve as soon as it starts to melt.

From the foregoing description it will be evident that in eachembodiment of the invention the grenade is supported in a ring which isconnected to'a bracket portion of a holder by a fusible connection. Whenthis fusible connection melts, due to the rising temperature caused bythe fire, this supporting ring will be released thus permitting thegrenade to drop and extinguish the fire.

Although one specific embodiment of the invention has been particularlyshown and described, it will be understood that the invention is capableof modification and that changes in the construction and arrangement ofthe various cooperating parts may be made without departing from thespirit or scope of the invention as expressed in the following claims.

What I claim is:

1. A support for grenade fire extingushers comprising a supporting bailhaving a loop for suspending the supporting bail and a ring carried bysaid bail and ada ted to encircle and support the grenade, t econnection between said ring and hail including a fusible connection.

2. A support for grenade fire extinguishers comprising a bail havin aneye connect ed thereto, a ring carried said bail and adapted to encirclethe grenade, and a second ring carried by said bail and ring and securedthereto by a fusible connection.

3. A support for grenade fire extinguishers comprising a bail having aneye connected thereto, fusible connecting means between the eye andbail, a ring carried by said bail and adapted to encircle the grenade,and a second ring carried by said bail and ring and secured thereto b afusible connection.

4. A support or grenade fire extinguishers comprising a bail having aneye connected thereto, a ring carried y said bail and adapted toencircle the grenade, and a second ring pivotally carried by said bailand ring and secured thereto by a fusible connection.

5. A support for grenade fire extinguishers comprising a supportingbail,- a ring carried by said bail and adapted to encircle a enade, andmeans carried by the bail and adapted to embrace and support the grenadefrom below, said means including a fusible connection.

6. A support for grenade fire extingui hers comprising a supportingmember, a pair of rings operatively connected to said supportin memberand adapted to encircle the grena e, one of the rings being adapted tosupport the grenade from below, the connection to said supporting ringincluding a fusible element.

7. A support for grenade fire extinguishers comprising a supportingbail, a pair of rings operatively connected to said supporting bai andads ted to encircle the grenade, one of the rings eing adapted tosupport the grenade from below, the connection to said supporting ringincluding a fusible element.

8. A support for enade fire extinguishers comprising a ball having aloop for receiving a supporting bracket, a pair of rin s carried by saidbail and adapted to encirc e the grenade, one of said rings being disosed above the other ring, the lower ring eing adapted to support thegrenade from below and being connected to the bail through a fusibleconnection.

9. Asupport for grenade fire extinguishers comprising a bail, a ringadapted to encircle and support a enade from below and operativelyconnecte to the bail through a fusible connection, and means connectedto said bail above said ring and adapted to encircle the grenade.

In witness whereof, I have hereunto set my hand this 12th day of J anualiy, 1927.

CHARLES O. J O NSTON.

loop for suspending the su porting bail and a ring carried by said baiand adapted to encircle and support the grenade, the connection betweensaid ring and bail including a fusible connection.

2. A support for grenade fire extinguishers comprising a bail havin aneye connected thereto, a ring carried by said bail and adapted toencircle the grenade, and a second ring carried by said bail and ringand secured thereto by a fusible connection.

3. A support for grenade fire extinguishers comprising a bail having aneye connected thereto, fusible connecting means between the eye andhail, a ring carried by said bail and ada ted to encircle the grenade,and a second ring carried by said bail and ring and secured thereto b afusible connection.

4. A support or grenade fire extinguishers comprising a bail havin aneye connected thereto, a ring carried y said bail and adapted toencircle the grenade, and a second ring pivotally carried by said bailand ring and secured thereto by a fusible connection.

5. A support for grenade fire extinguishers comprising a supportingbail,- aring carried by said bail and adapted to encircle a grenade, andmeans carried by the bail and adapted to embrace and support the grenadefrom below, said means including a fusible connection.

6. A support for grenade fire extinguishers comprising a supportingmember, a pair of rings operatively connected to said supporting memberand adapted to encircle the grenade, one of the rings being adapted tosupport the grenade from below, the connection to said supporting ringincluding a fusible element.

7. A support for grenade fire extinguishers comprising a supportingbail, a pair of rings operatively connected to said supporting bail andadapted to encircle the grenade, one of the rings being adapted tosupport the grenade from below, the connection to said supporting ringincluding a fusible element.

8. A support for grenade fire extinguishers comprising a bail having aloop for receiving a supporting bracket, a pair of rin s carried by saidbail and adapted to encirfie the grenade, one of said rings beingdisposed above the other ring, the lower ring being adapted to supportthe grenade from below and being connected to the bail through a fusibleconnection.

9. Asupport for grenade fire extinguishers comprising a bail, a ringadapted to en circle and support a grenade from below and operativelyconnected to the bail through a fusible connection, and means connectedto said bail above said ring and adapted to encircle the grenade.

In witness whereof, I have hereunto set my hand this 12th day of Janua1927.

CHARLES O. J O NSTON.

CERTIFICATE OF CORRECTION.

Patent No. 1,648,233.

Granted November 8, 1927, to

CHARLES O. JOHNSTON.

lt is hereby certified that the above numbered patent was erroneouslyissued to "Standard Fire Equipment Corporation, of New York, N. Y. aCorporation of Delaware, whereas said Patent should have been issued to"international Fire Equipment Corporation, of New York, N. Y.", acorporation of Delaware, said Corporation being assignee by mesneassignments of the entire interest in said invent-ion, as shown by therecords of assignments in this office; and that the said Letters Patentshould be read with this correction therein that the same may conform tothe record of the case in the Patent Office.

Signed and sealed this 17th day of January, A. D. 1928.

Sea].

M. J. Moore, Acting Commissioner of Patents.

CERTIFICATE OF CORRECTION.

Patent No. 1,648,233. Granted November 8, [927, to

CHARLES O. JOHNSTON.

It is hereby certified that the above numbered patent was erroneouslyissued to "Standard Fire Equipment Corporation, of New York, N. Y.", aCorporation of Delaware, whereas said Patent should have been issued to"international Fire Equipment Corporation, of New York, N. Y. acorporation of Delaware, said Corporation being assignee by mesneassignments of the entire interest in said invention, as shown by therecords of assignments in this office; and that the said Letters Patentshould be read with this correction therein that the same may conform tothe record of the case in the Patent Office.

Signed and sealed this 17th day of January, A. D. 1928.

M. J. Moore, Seal. Acting Commissioner of Patents.

